Recently，the research article: “Co1-xS/N, S-codoped carbon loaded porous carbon cloth as flexible electrode for high performance supercapacitors” was published in Chemical Engineering Journal (IF = 13.3), and Jiangsu University is the first completed institution. Associate Professor Kong Lirong and Professor Shen Xiaoping are co corresponding authors.
Abstract:
The capacitive performances of flexible electrodes highly depend on their architectures and redox activity. In this work, Co1-xS/N, S-codoped carbon (NSC) loaded porous carbon cloth (p-CC) was prepared through an etching procedure and a followed repeated-sulfurization process. Since the porous CC could accommodate more Co1-xS nanoparticles and the phase structure of Co1-xS was well controlled by the repeated-sulfurization process, the obtained p-CC/Co1-xS/NSC electrode with optimized composition and architecture exhibits high areal capacitances of 1263.8 mF cm−2 at 1 mA cm−2 and 858.6 mF cm−2 at 50 mA cm−2. The deposited NSC on Co1-xS could effectively prevent their slipping and agglomeration, and thus make the electrode exhibit high capacitance retention of 99.7 % after 20,000 charge–discharge tests. The all-solid-state symmetric supercapacitor assembled by the formed electrodes and ionic liquid/gel electrolyte shows a maximum energy density of 1.34 mWh cm−3 at the power density of 9.55 mW cm−3. These results present a new strategy for the construction of cobalt-sulfide/carbon based flexible electrode with high capacitive performances.
The Article Link:
https://doi.org/10.1016/j.cej.2024.156517
